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一、选耐热抗病品种秋延晚西红柿生长期所处的气候条件是前期高温,后期低温,因此应选用耐热抗病、丰产、优质、大果型品种。目前,主要选用中蔬4、5号,中杂4号,毛粉802,佳粉1、10号等品种。二、育苗、定植1、播种期。播种期过早常因气温过高而发生病毒病,播种过晚生长期短,又影响产量,因此,应根据品种特性和气候条件适期播种,一般在初霜前100天左右,石家庄市郊区以7月下旬播种为宜。2、遮阳降温育壮苗。西红柿育苗,可用银灰色遮光度25～40％的遮阳网,或用旧农膜、苇帘遮阳降温育苗。用10％磷酸三钠浸种20分钟可杀死种子表面的烟草花叶病毒。幼苗出土后,注意防蚜,在畦内插竹杆悬挂银灰膜条驱蚜,并小水勤浇降温。
First, the selection of heat-resistant varieties Qiuyan late tomato growth period where the climatic conditions are pre-high temperature, late low temperature, it should be used heat-resistant disease, high yield, high-quality, large fruit varieties. At present, the main selection of vegetables in No. 4,5, No. 4 in miscellaneous, rough 802, flour 1,10 and other varieties. Second, nursery, planting 1, sowing period. Sowing too often because of the temperature is too high and the occurrence of virus disease, sowing late growth period is short, but also affect the yield, therefore, should be based on species characteristics and climate conditions, sowing, usually in the first frost 100 days before the suburbs of Shijiazhuang Seeding in late July is appropriate. 2, shade cooling nurturing seedlings. Nursery tomatoes, silver shading available 25 ~ 40% shade net, or with the old plastic sheeting, reed curtain shade nursery. Soaking seeds with 10% trisodium phosphate for 20 minutes killed the tobacco mosaic virus on the surface of the seeds. After the seedlings were unearthed, pay attention to the prevention of aphids, in bamboo cage inserted silver rod hanging silver film aphids, and small water ground pouring cool.